Conveying-pipe cotton cleaner



March 20, 1928.

T. L. OATES CONVEYING PIPE COTTON CLEANER 5. 1926 2 Sheets-Sheet 1 Filed Aug.

amventoz March 20, 1928. 1,663,091

T. I... OATES CONVEYING PIPE COTTON CLEANER Filed Aug. 3. 1926 v 2 Sheets-Shet ,2

(a 0 Q 9 7-- A 53mm fitter/Mega Patented Mar. 20, 1928.

THOMAS L. GATES, or nnonnrss, non'rn CAROLINA.

CONVEYING-PIPE COTTON CLEANER.

Application filed August 3, 1926. Serial No. 126,890.

This invention aims to provide novel means for cleaning cotton whilst the cotton is being carried along by air blast from one place'to another.

it is within the province of the disclosure to improve generally and -to' enhance the 7 and claimed, it being understood g that changes in the preciseembodiment of-the invention herein disclose-d, may be made withm thescope'of what is claimed, without departing from the spirit of the invention.

In the drawings V Figure 1 shows in side elevation, a device constructed in accordance with the invention;

Figure 2 is a longitudinal section showing one of the parts of the conduit delineated in Figure 1;

Figure 3 is a transverse section on the line 33 of Fig. 1, divers parts being in elevation. I

Figure 4 is a perspective view wherein sundry parts are disposed in spaced relation to each other.

The device forming the subject matter of this application preferably is made of metal, and includes a conduit 25, comprising a plurality of sections 24, placed end to end.

Since the sections 24 are alike, a description.

of one section will answer for all.

The section 24 includes an upper member 23 of approximately semi-circular, trough-' shaped outline, and a lower member 22, of trough-shape, the members 22 and 23 having cooperating flanges 21 between which are located side pieces 20 of a screen 19 extended the full length of the section 24. Securing elements 18 pass through the flanges 21, the -flanges engaging the side bars 20 of the screen 19, and the upper member 23 and the lower member 22 thus being held together.

In the top of each upper member 23 there is an opening 17 disposed about midway between the ends of the said member and controlled by a movable closure 16. Each lower member 22 has bottom portions 15 which slant downwardly toward a point about midway between the ends of the lower member 22, there being an outlet 14 at the lowermost portion of the bottom of the lower member 22, the outlet 14 being controlled by a movable closure 12. i

Gross plates 11 are secured at theirends to the sides of the lower member'22, and doors '10 arehinged at 9 to the cross plates 11 for-vertical swinging movement. When the doors are in the depending positions shown in Figure 2, they close the space between the sides of the lower member 22, and between the bottom 15 and the lower end of the cress plate 11. Battles 8 are located be tween some of the cross plates 11., There may be many or as few of the bafiles 8 as occasion may demand. .The baffles are 10 cated below the screen 19 and aresconnected at their ends, to the sides ofthelower-mem-- in the sides of the lower member 22 and is I located approximately midway between the ends of the section 24. The shaft 7 has external handles 6 whereby it may be rocked.

nccted with the next adjoining doors, and v the doors are connected, one to another, by rigid connections 1 which are pivoted to the said doors.

In practical operation, the cotton is driven along by a blast of air, in'the upper member 23, above the screen 19. The dirt and trash in the cotton, as the cotton is carried along over the screen 19, tends to drop downwardly into the compartments that exist between the doors 10. The baffles 8 help to confine the blast of air to the space above the screen 19, and the dirt, therefore, falls down on the inclined bottom. portions 15 of the lower member 22. The shaft 7 may be rocked by means of the handles 6, and, then, the cranks 5 and 4, together with the links 3 and 2, and the connections 1, will open the doors 10, the dirt passing'downwardly along the bottom portions 15, and outwardly through the out-let 14, the closure 12 having been opened. The closure 16 may be opened to give access to the space above the screen 19, in the event of clogging, or any other exigency requiring access to the space above the screen 19.

What is claimed is 1. In a deviceof the class described, a conduit, a screen in the conduit and dividing the conduit into upper and lower portions, the lower portion being provided with an outlet, doors in the lower portion of the conduit on opposite sides of the outlet, the doors being movably mounted to permit trash to pass through the outlet, and transverse baflies located between certain of the doors and below the screen.

2.. In a device, of the class described, a conduit, a screen in the conduit and dividing the conduit into upper and lower portions, the lower portions of the conduit having an outlet, and the bottom of the lower portion of the conduit slanting in opposite directions lengthwise or" the conduit to the outlet, doors in the lower portion of the conduit, and means for mounting the doors 'inovably, so that theymay be opened to permit trash to pass: along the bottom of the lower portion of the conduit out of the out- 3: In a device of the class described, a conduit, a screen in the conduit and dividing the conduit into upper and lower portions, the lower portion of the conduit having an outlet, and the bottom of the lower portion of the conduit slanting in opposite directions lengthwise of the conduit to the outlet, doors in the lower portion of the conduit, means for mounting the doors movably, connections uniting the doors for movement in groups, a shaft mounted to rock in the conduit between the innermost doors of the groups, the shaft having cranks, and links connecting the innermost doors of the groups withthe cranks. I

4. In a device of the class described, a conduit, a screen in the conduit and dividing the conduit into upper andlower portions, the lower portionoi"; the conduit having an outlet, and the bottom of the lower portion of the conduit slanting in opposite directions lengthwise of the conduit to the outlet, cross plates located immediately below the screen, doors hinged to the lower edges of the cross plates, and arranged in groups on opposite sides ot the outlet, means for connecting together the doors of each group, means assembled with the innermost groups for operating all of the doors of the doors. c v I In testimony thatI claim the foregoing as my own, I have hereto aflixed my signature.

THOMAS L. OATES. 

